Maple-Pumpkin Pie Bars

Heat oven to 350 degrees F. Line 13- by 9-inch pan with foil, with ends of foil extending over sides; spray with cooking spray. Mix cake mix, 1 egg, and butter until blended; press onto bottom of prepared pan. Beat cream cheese, brown sugar, remaining eggs, pumpkin, and dry pudding mix with mixer until blended; pour over crust. Meanwhile, mix whipped topping mix, milk, and syrup in large bowl with mixer on low speed until blended. Beat on high speed 4 minutes or until mixture forms stiff peaks. Refrigerate until ready to use. Spread whipped topping mixture onto dessert and sprinkle with cinnamon before cutting into bars to serve.